Aspecies is a group of organisms capable of mating and producing offspring, and is the process of forming a new species. one way a new species may form is by geographic isolation. this occurs when members of a population are physically separated, for example, by a river, or a desert. after the separation the two populations, responding to different conditions, will adapt differently, and so their evolutionary paths will be different.

prophase: we can observe the chromosomes to coil up and condense. they become visible. nuclear membrane and envelope disintigrate.s

metaphase: chromosomes align at the center, the metaphase plate. spindle fibers attach to centromeres of the sister chromatids. they meet at kinetochores.

anaphase: sister chromatids are pulled towards each opposing centromere, set on different poles.

telophase: chromosomes are now clustered up only on either sides of the cell. nuclear membranes reform, and a new cell wall forms along the cell plate. this will lead to cytokinesis, the process that divides the cell membrane and forms the cell wall.

equal distribution i think.